Shaft-hanger



` (Model.)

R, WHITEHILL.

SHAFT HANGER.

No. 279,624. Patented June 19, 1883..

ll m

UNITED STATES PATENT OFFICE.

G ROBERT-WHITEHILL, on MILWAIIKEE, WISCONSIN.

SHAFT-HANGER.

SPECIFICATION forming part of Letters Patent No. 279,624, dated June 19, 1883.

Application filed October 11,1882. (Model.)

.To all whom, it may concern:

Be it known that I, ROBERT WHITEIIILL, of Milwaukee, county of Milwaukee, State of Wisconsin, have invented an Improvement in Shaft-Hangers, of whichthe following description, in connection with the accompanying drawings, is a specification. j

My invention has for its object the construction of an adjustable shaft-hanger in which the box is so supported as` to be able to oscillate both vertically and horizontally, in order that thebox may readily adapt or align itself to the shafting or its vibrations, thus avoiding the cramping of the shafting in the boxes, reducing the strain on the boxes, and `enabling the shafting to be run by the expenditure of less power and with less wear than were the box held rigidly. l

My invention consists in means, such as hereinafter described, for supporting the box in order that it may move as stated and for adjusting the yoke in which the box is held.

In the drawings, in which the same letters designate like parts, Figure 1 represents, in side elevation and vertical. section, a shafthanger embodying my invention; 2, a cross-section thereof on the line mf; Fig. 3, a cross-section on the line a?, and Fig. 4 three views of a modification to be referred to.

The base A of the hanger, adapted to be connected withthe ceiling or other place by suitable screws or bolts extended through the ears A, has a crossfbar, A2, and guide-hub A3 A, to receive 'the shank C of the yoke (Y, provided with the box-supports C2. The yokeC is sustained by a screw or bolt, B, extended through the cross-bar Arz into the shank C, and by turning said bolt the yoke may be adjusted vertically to bring the box G, supported by it, to the proper level. The shank C of the yoke C has a key or projection, 3, and the hub A4 has a correspondingly shaped opening, ,j 4, through which the said projection passes when the shank C is being placed in position in the hubs A3 A4, and as soon as the projection 3 passes above the hub A4, slight rotation of the sh ank C carries the said projection beyond the said opening or slot 4 and prevents the yoke dropping while being adjusted into proper position by the screw B. The shank C is held or fixed .in place by the set-screws 2 and 5. rlhe under shell of the box G,.having theusual A top shell connected therewith by screws or bolts 7, has its side ears, 71 carried above the center line of the shaft S, and the said ears are recessed or socketedat their under sides, as at '8, (see right of Fig. 1,) to form bearing-faces level with the center line of the said box and shaft. These bearing-faces rest upon the boxsupporting projections C"I of the yoke C', the

Ysaid projections having their narrow upper edges located at the level of the center line ofthe box G, so that the said box may tip up and down at its ends on the said projections as fulcra. To prevent the boxleaving the said projections C2 under any strain on the shaft in the direction of the base A or upward, I have added ear-holding devices d, (shown in Figs. 1 and 2 as pointed screws,) the ends of which rest above and in contact with the beveled edges 6 of the ears 7a. The ears lz, at their ends, arev turned in the arc of a circle described from the longitudinal center of the shaft o`r box as designated by the curved lines 10, (see Fig. 2,) and the said curved ends bear against curved bearing-pieces e, attached to the yoke (l, thus guiding the box in its horizontal movements or adjustments. Thelower end of the yoke is held togetherby the bolt C, the turning of which controls the closeness of the contact of the said guide-pieces c with the curved ends of the ears 71., to thus insure correct movements. This screw F- also supports the drip-cup H. The box tips vertically and turns horizontally on the projections C2. In-

stead of the bevel face 6 ofthe ears lz` and the screws, I may employ an ear-holding device such as shown in Fig. 4,it heilig composed of a dog pivoted on the yoke at 12 above the center of the ear, and the sai-d dog will act upon a surface of the top of the ear 71, the said surface being' level with the center line of the shaft S and immediately above the projections C7". The lower ends of the yoke being separated, as shown in Fig. l, ample space is afforded, when the bolt C3v is removed, for the passage of the shaft-ing into the yoke.

I elaiin- 1. rlhe base of the hanger, and its cross-bar and hub, and the yoke having the shank C, combined with the adjusting-screw, toadjnst the yoke vertically or longitudinally, substanv tially as described.

2. The base A, and the hub, and its cross-- IOO bar A2, provided with the adj usting-screw, and the hub provided With the passage 4, coinbined with the yoke, and its shank C, provided With the projection 3, to temporarily support the said yoke while being adjusted into operative position, substantially as described.

8. The yoke provided with the box supporting projections, having their ends terminated at the center line of the box, combined With the box, having ears provided With bearing-faces to rest upon the said projections and turn thereon, both vertically and horizontally, substantially as described.

4. The -yoke provided with the box -sup porting projections C2, and with the curved guides e, combined with the box having ears 7L, to rest upon the said projections, and curved to bear against the said guides, asandfor the purposes described.

5. The yoke provided with the box-supporting projections, and with the guides e, and the box having the ears h curved attheir outer ends as described, combined with the adjusting-screws d, to insure proper contact of the ears and guides, substantially as described.

6. The yoke provided with the box -supporting projections, and the box having ears bar A2 and a hub, and the yoke C', having a shank, C, inserted in the said hub, combined with the screw B, to adjust the said yoke vertically, and with a set-screW co-operating with the said hub and shank of the yoke, to prevent the rotation of the said shank in the said hub, as shown.

8. The combination, substantially as shown and described, in a shaft-hanger, of abaseprovided with bearings for a vertical shank, a yoke having such shank to fit and be secured in said bearings, means for adjusting said yokes shank in said bearings, and a shaftbox sWiveled in said yoke, as and for the purpose specified. p

In testimony whereof I have signed my naine to this specification in the presence of two subscribing Witnesses.

ROBERT VHITEHTLL. Vituesses:

G. NV. GREGoRY, B. J. NoYEs. 

